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Finding the Fourth Proportional to 269,504.48, 371,915.43 and 154,790.57

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Solution

The fourth proportional to 269,504.48, 371,915.43 and 154,790.57 is: 213,610.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,504.48 : 371,915.43 = 154,790.57 : x
  2. Step 2: Convert to fraction form
    269,504.48/371,915.43 = 154,790.57/x
  3. Step 3: Cross multiply
    269,504.48x = 371,915.43 × 154,790.57
  4. Step 4: Simplify right side
    269,504.48x = 57,568,999,541.92
  5. Step 5: Solve for x
    x = 57,568,999,541.92/269,504.48
  6. Step 6: Final answer
    x = 213,610.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.